MCQGeeks
0 : 0 : 1
CBSE
JEE
NTSE
NEET
English
UK Quiz
Quiz
Driving Test
Practice
Games
NEET
NEET Chemistry MCQ
Alcohols, Phenols And Ethers Mcq Neet Chemistry
Quiz 6
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Q.1
The boiling point of glycerol is more than propanal because of ... ..
0%
a) Hybridisation
0%
b) H-bonding
0%
c) Resonance
0%
d) All of these
Explanation
Because of presence of three -OH group, Excessive H-bonding Answer : (b)
Q.2
Glycerol, on heating with oxalic acid at 110°C gives ... ...[ Haryana CET 1998]
0%
a) Ethanol
0%
b) Methanoic acid
0%
c) Ether
0%
d) Acetone
Explanation
Answer : (b)
Q.3
The reaction of ethanol with H2SO4 does not give ... .... [ MP PET 1996]
0%
a) Ethylene
0%
b) Diethyl ether
0%
c) Acetylene
0%
d) Ethyl hydrogen sulphate
Explanation
Answer : (c)
Q.4
on Q155) Identify the final product ... ... [ DEC 1996]
0%
a) Ethanol
0%
b) Ethanal
0%
c) Epoxy ethane
0%
d) Ethylene glycol
Explanation
Answer : (d)
Q.5
on Q156) The product X is
0%
a)
0%
b)
0%
c)
0%
d)
Explanation
Given reagents K2CO3 and CH3I reacts with -OH group to give ether. Phenolic -OH group is more reactive than benzylic -OH due to higher acidic strength of phenol than alcohol. Hence reaction would take place Answer : (b)
Q.6
Anisole with conc.HNO3 and conc. H2SO4 gives ... .... [ Punjab CET 1992]
0%
a) Phenol
0%
b) Nitobenzene
0%
c) o- and p- Nitoanisole
0%
d) m-Nitroanisole
Explanation
Answer : (c)
Q.7
The ether that undergoes electrophilic substitution reactions is ... ...
0%
a) CH3OC2H5
0%
b) C6H5OCH3
0%
c) CH3OCH3
0%
d) C2H5OC2H5
Explanation
Alkyl aryl ethers undergo electrophilic substitution reaction Answer : (b)
Q.8
Primary and secondary alcohols on action of red hot copper give ... ...
0%
a) Aldehydes and ketones respectively
0%
b) Ketone and aldehydes respectively
0%
c) Only aldehydes
0%
d) Only ketones
Explanation
Answer : (a)
Q.9
In the synthesis of glycerol from propene, the steps involved are ... ... [ Tamil Nadu CET 2002]
0%
a) Glycerol-β-chlorohydrin and allyl chloride
0%
b) Glyceryl trichloride and glycerol-α-chlorohydrin
0%
c) Allyl alcohol and glycerol-β-chlorohydrin
0%
d) Allyl alcohol and monosodium glycerolate
Explanation
Answer : (c)
Q.10
When ethyl alcohol is dissolved in water, it is accompanied with .... .....
0%
a) evolution of heat and contraction in volume
0%
b) absorption of heat and contraction in volume
0%
c) evolution of heat and increase in volume
0%
d) absorption of heat and increase in volume
Explanation
The mixture shows positive deviations from Raoult's law ΔHmix > 0, ΔVmax > 0 Answer : (d)
Q.11
on Q162) The product C in the following sequence of reaction
0%
a) methyl ethyl ether
0%
b) butane
0%
c) ethane
0%
d) propane
Explanation
Answer : (a)
Q.12
Butan-2-ol is ... ...
0%
a) Primary alcohol
0%
b) Secondary alcohol
0%
c) tertiary alcohol
0%
d) none of these
Explanation
Answer : (b)
Q.13
Acetic acid and methanol are obtained on a large scale by destructive distillation of .... ......
0%
a) terpentine oil
0%
b) Coal
0%
c) Wood
0%
d) CH3cOOH
Explanation
Answer : (c)
Q.14
General formula of primary alcohol is
0%
a)
0%
b)
0%
c) CnHn+2OH
0%
d) All of these
Explanation
Answer : (c)
Q.15
han One Correct Answer Q166) Alcohols may behave as
0%
a) Bronsted acid
0%
b) Lewis base
0%
c) oxidising agent
0%
d) reducing agent
Explanation
Answer : (a and b)
Q.16
Glyoxal is .... .....
0%
a) CH2OH - CHO
0%
b) CH2 = CHCHO
0%
c) CH2OH - CHO
0%
d) CHO - CHO
Explanation
Glyoxal is a trivial name for ethane -1-2-dial Answer : (d)
Q.17
han One Correct Answer Q)168) Which of the following is known as rectified spirit
0%
a) The alcohol sold in the market for polishing is known as methylated spirit
0%
b) Ordinary ethyl alcohol is known as rectified spirit
0%
c) Absolute alcohol is 100% ethanol
0%
d) Power alcohol is 100% ethanol
Explanation
Answer : (a, b and c)
Q.18
Esterification of alcohol involves .... ...
0%
a) H of alcohol and OH of acid
0%
b) OH of alcohol and H of acid
0%
c) OH of alcohol and OH of acid
0%
d) H of alcohol and H of acid
Explanation
Answer : (a)
Q.19
Formation of diethyl ether from ethanol is based on a .... ....
0%
a) dehydrogenation reaction
0%
b) hydrogenation reaction
0%
c) dehydration reaction
0%
d) oxidation
Explanation
Answer : (c)
Q.20
Intermolecular dehydration of alcohols gives .... ......
0%
a) ketones
0%
b) ether
0%
c) alkenes
0%
d) alkynes
Explanation
ROH + HOR → ROR Answer : (b)
Q.21
Which is/are primary alcohol
0%
a) Butan-2-ol
0%
b) Butan-1-ol
0%
c) Propan-2-ol
0%
d) 2,3-dimentylhexan-1-ol
Explanation
Answer : (b and d )
Q.22
Which of the following ethers form peroside readily?
0%
a) Me - O - Me
0%
b) Et - O - Et
0%
c) iPr - O - iPr
0%
d) Me - O - Et
Explanation
Presence of two isopropyl groups on oxygen atom of ether shows more powerful inductive effect Answer : (c)
Q.23
Which is/are the source(s) of phenol?
0%
a) Middle oil of coal-tar distillation
0%
b) Cumene
0%
c) Hydrolysis of benzene diazonium salt
0%
d) Reaction of diazonium salt with H3PO2
Explanation
Answer : (a, b and c)
Q.24
Which is not an alcohol ..... ...
0%
a) C6H5CH2OH
0%
b) C6H5OH
0%
c) C3H6O
0%
d) CH2OHCH2OH
Explanation
option 'b' represent phenol Answer : (b)
Q.25
han One Correct Answer Q176) Indicate the correct statement(s)
0%
a) diethyl ether is used as anaesthetic
0%
b) diethyl ether is used as refrigerant
0%
c) diethyl ether is an inert compound
0%
d) diethyl ether is insoluble in water
Explanation
Answer : (a and c)
Q.26
on Q177) The product in the given reaction is ..... ....
0%
a)
0%
b)
0%
c)
0%
d)
Explanation
Answer : (a)
Q.27
han One Correct Answers Q178) Phenol react with
0%
a) sodium carbonate
0%
b) sodium hydroxide
0%
c) sodium bicarbonate
0%
d) potassium hydroxide
Explanation
Answer : (a,b and d)
Q.28
An alcohol is not oxidised in alkaline or neutral solution but in acidic solution it is turned first to acetone and then to acetic acid. It is a ... ..
0%
a) Primary alcohol
0%
b) secondary alcohol
0%
c) tertiary alcohol
0%
d) none of these
Explanation
tertary alcohol gets oxidised in acidic medium Answer : (c)
Q.29
There are four alcohols P, Q, R and S which have 3, 2, 1 and zero alpha hydrogen atom(s). Which one of the following will not respond to Viktor Meyer's test?
0%
a) P
0%
b) Q
0%
c) R
0%
d) S
Explanation
Zero alpha hydrogen for 'S' it means it is tertiary alcohol. Tertiary alcohols do not give Viktor Meyer's test Answer : (d)
Q.30
han One Correct Answer Q181) When phenol is reacted with CHCl3 and NaOH followed by acidification, salicylaldehyde is obtained. Which of the following species is/are involved in the above mentioned reaction as intermediates(s)
0%
a)
0%
b)
0%
c)
0%
d)
Explanation
Answer : (b and c)
0 h : 0 m : 1 s
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Report Question
×
What's an issue?
Question is wrong
Answer is wrong
Other Reason
Want to elaborate a bit more? (optional)
Support mcqgeeks.com by disabling your adblocker.
×
Please disable the adBlock and continue.
Thank you.
Reload page